Music journalist Walter Kolosky is best known for his work on the music of the guitarist/composer John McLaughlin. He gave a lecture about that music at the Cordoba Guitar Festival in Cordoba, Spain. Kolosky is the author of the acclaimed book about the Mahavishnu Orchestra, Power, Passion and Beauty. Follow Your Heart (2011), continues his study of McLaughlin's music song by song since 1969. An updated 2013 Special Edition eBook of Power, Passion and Beauty was released in late 2012.